Dubov, also the CEO, said: “We’re thrilled to have the ongoing support of such a great list of investors. We’ve been lucky enough to help some of the world’s most customer centric businesses see genuine value by understanding their users at scale. Our platform not only challenges their assumptions, but gives them incredibly detailed insight in real-time, at a fraction of the cost of traditional customer experience research.”

Chattermill says it is already being used by Just Eat, Transferwise, MOO, HelloFresh and Deliveroo.

The firm, which has raised just shy of a £1m to date, was part of Entrepreneur First’s Spring 2015 cohort.

Matt Clifford, CEO and co-founder of Entrepreneur First, said: “We saw the opportunity in Chattermill from the very beginning and are happy to continue to back Mikhail, Dmitry and their growing team. They are a fantastic example of how machine learning and AI can dramatically impact product development by listening to what the customer really needs. We’re all very excited to see what happens in the coming year for Chattermill and see what other learnings they can provide their customers.”

The funding will be used to invest in technology and to continue growing the team.